@kelpye
While I am not familiar with this specific processor, maybe the following suggestions will help since the exception shared states that NiFi is unable to validate against the configured property value in the "CopybookPath" property :
1. The following string in your copybook path is a NiFi Parameter reference:
#{hdfs.output.raw-input-files}
When NiFi enables this processor it resolves the above the value configured to it in the parameter context list. If you replace above with the absolute local path instead of using a parameter, does it validate?
2. Also keep in mind that all components executing on the canvas are executed as the NiFi service user and not as the authenticated user who added those components to the canvas. So make sure that the NiFi service user is able to navigate the resolved path to your copybook.cbl file and has proper OS permissions to read that file.
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Thank you,
Matt
